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The medical world can be a confusing place. Patients, their families—and even students entering health fields!—might feel overwhelmed by the complex words and complicated explanations. This course attempts to make the fascinating human organism a bit easier to understand.

The biology archive contains legacy biology content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out High School Biology and AP Biology!

In this unit, we’ll embark on a molecular adventure to unravel the connections between genes, proteins, and traits. We’ll learn about the elegant structure of DNA and its replication process, explore the roles of RNA and proteins in cellular function, and discover the intricacies of transcription and translation. We'll also investigate how mutations influence genetic outcomes.